if the radius of two spheres are in the ratio 1:4 , then their surface area are in the ratio
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three circles are placed on a plane in such a way that each circle just touches the other two, each having a radius of 10 cm. find the area of the region enclosed by them. hu wvhe w it hu bsus she7ebeue
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three circles are placed on a plane in such a way that each circle just touches the other two, each having a radius of 10 cm. find the area of the region enclosed by them. heuw euw wuw eee wue eue eue eiewvw7e e7
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